Question has two parts to it, thank you!

(Using degree of operating leverage) Last year Baker-Huggy Inc. had fixed costs of $170,000 and net operating income of $26,000. Il sales increase by 19 percent, by how much will the firm's NOI increase? What would happen to the firm's NOI if sales decreased by 22 percent? If sales increase by 19%, the change in the firm's Noi will be of % (Select from the drop-down menu and round to two decimal places.) les